Embarcadero Red Ball

April 9, 2013

Paul Chinn/The Chronicle

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Isabel Archer reaches out to touch a 15-foot inflatable ball wedged into a stairway at the Embarcadero BART station in San Francisco, Calif. on Tuesday, April 9, 2013. Artist Kurt Perschke brought his Red Ball Project art installation to the station for the day to entertain and amuse commuters as they arrived and departed.

Paul Chinn/The Chronicle

4of7

Isabel Archer reaches out to touch a 15-foot inflatable ball wedged into a stairway at the Embarcadero BART station in San Francisco, Calif. on Tuesday, April 9, 2013. Artist Kurt Perschke brought his Red Ball Project art installation to the station for the day to entertain and amuse commuters as they arrived and departed.